(integer) An estimate of the total number of items in the whole list of which this response contains a subset. C<null> if a count cannot be determined at all, or if an exact count is returned in C<totalResults>.

(string) An opaque token that can be used as the C<start-token> parameter of a followup request to retrieve additional results. C<null> if there are no more results to retrieve, but the presence of this token does not guarantee that the response to a followup request will actually contain results.

(integer) An estimate of the total number of items in the whole list of which this response contains a subset. C<null> if a count cannot be determined at all, or if an exact count is returned in C<totalResults>.

(string) An opaque token that can be used as the C<start-token> parameter of a followup request to retrieve additional results. C<null> if there are no more results to retrieve, but the presence of this token does not guarantee that the response to a followup request will actually contain results.

(integer) An estimate of the total number of items in the whole list of which this response contains a subset. C<null> if a count cannot be determined at all, or if an exact count is returned in C<totalResults>.

(string) An opaque token that can be used as the C<start-token> parameter of a followup request to retrieve additional results. C<null> if there are no more results to retrieve, but the presence of this token does not guarantee that the response to a followup request will actually contain results.